Your armies - defeated, your cities - destroyed and the orc invaders are now coming for you! Two years after the orcs invaded your empire the only standing building is your castle. And now his time is also over! It looks pretty bad for you. Good that you have the best engineers in the whole world. Your engineers with a little help from the aliens have built for you the ultimate secret defense weapon. One weapon to rule them all! The Big Bad Ballista! The big and scary crossbow with integrated laser pointer placed on top of the biggest defense tower in your castle. Use the crossbow to defend your castle and shoot the incoming orcs down! Kill them all! Show them who the ruler of this land is.

The Orcs Invasion is the ultimate action tower defense game. Forget all other tower defense games! In this one you have a big crossbow is in your hands. You don't just place towers and hope they are enough and will do the job for you. You are taking control of the Big Bad Ballista and you shoot the incoming enemies by yourself. Defend your castle now and show no mercy to the orcs!